Method of and apparatus for positioning machine parts



Jan. 1, 1963 E. K. WAGNER 3,071,028

METHOD 0F' AND APPARATUS FOR POSITIONING MACHINE PARTS Filed Feb. 18, 1957 2O Sheets-Sheet 1 CHTTQHMEYJ Jan. 1, 1963 E. K. WAGNER 3,071,028

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Jan. 1,*1963 E. K. WAGNER 3,071,028

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6. THE COMBINATION OF FIRST AND SECOND MACHINE PARTS MOUNTED FOR MOVEMENT RELATIVE TO EACH OTHER ALONG A PREDETERMINED PATH, A PLURALITY OF REFERENCE ELEMENTS MOUNTED ON SAID FIRST PART AND SPACED APART ALONG SAID PATH, A REFERENCE MEMBER MOUNTED ON SAID SECOND PART ADJACENT SAID PATH, A PLURALITY OF SWITCHES FEWER IN NUMBER THAN SAID REFERENCE ELEMENTS AND MOUNTED ON SAID SECOND PART ADJACENT SAID REFERENCE MEMBER, A PLURALITY OF SETS OF ACTUATORS MOUNTED ON SAID FIRST PART WITH EACH SET ADJACENT A DIFFERENT ONE OF SAID REFERENCE ELEMENTS AND OPERABLE TO ACTUATE SAID SWITCHES IN A DIFFERENT COMBINATION WHEN THE CORRESPONDING ELEMENT IS ADJACENT SAID MEMBER, A PLURALITY OF IDENTIFYING CIRCUITS EACH CORRESPONDING TO A DIFFERENT ONE OF SAID REFERENCE ELEMENTS AND COMPLETED IN RESPONSE TO ACTUATION OF SAID SWITCHES BY THE ASSOCIATED ONE OF SAID SETS OF ACTUATORS, MEANS FOR SELECTING ONE OF SAID CIRCUITS AND THE ASSOCIATED REFERENCE ELEMENT, AND MEANS CONTROLLING RELATIVE MOVEMENT OF SAID PARTS IN RESPONSE TO COMPLETION OF THE SELECTED ONE OF SAID IDENTIFYING CIRCUITS.
 15. THE COMBINATION OF FIRST AND SECOND MACHINE PARTS MOUNTED FOR MOVEMENT RELATIVE TO EACH OTHER ALONG A PREDETERMINED PATH, A PLURALITY OF REFERENCE ELEMENTS MOUNTED ON SAID FIRST PART AND SPACED APART ALONG SAID PATH, A CARRIAGE MOUNTED ON SAID SECOND PART FOR MOVEMENT LONGITUDINALLY OF SAID PATH WITHIN A LIMITED RANGE, POWER ACTUATED MEANS FOR SHIFTING SAID CARRIAGE WITHIN SAID RANGE, ELECTRICAL CIRCUITS CONTROLLING SAID POWER MEANS AND COOPERATING THEREWITH TO SHIFT SAID CARRIAGE TO ONE END OF SAID RANGE AND THEN AWAY FROM SUCH END AND INTO A ZERO POSITION WITH RESPECT TO THE FIRST ONE OF SAID ELEMENTS SPACED FROM THE END, MEANS FOR SELECTING ONE OF SAID ELEMENTS AND GIVING A SIGNAL WHEN THE ELEMENT IS DISPOSED ADJACENT SAID CARRIAGE, AND MEANS CONTROLLING THE RELATIVE MOVEMENT OF SAID PARTS AND OPERABLE TO STOP SUCH MOVEMENT IN RESPONSE TO SAID SIGNAL. 